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package org.madmac.encoding;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;


/**
 *
 * @author suporte
 */
public class CharsetFilter implements Filter {

	private String encoding;
	
	public void init(FilterConfig config) throws ServletException {
		
		try {
			
			encoding = config.getInitParameter("requestEncoding");
			
			if (encoding == null) {
				encoding = "UTF-8";
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain next) 
		 throws IOException, ServletException {
		
		try {
			
			if (request.getCharacterEncoding() == null) {
				request.setCharacterEncoding(encoding);
			}
			next.doFilter(request, response);
			
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}

	public void destroy() {
	}

}
